An 83-year-old drug-dealing doctor from Staten Island has been busted for distributing painkillers, authorities said.

Federal agents raided the Grant City home of Dr. Felix Lanting at about 6 a.m. yesterday as part of an ongoing FBI investigation into health care fraud, said Special Agent Richard Kolko, an FBI spokesman.

Lanting allegedly operated out of his modest, two-story white house on Hunter Avenue, near Bowden Street, and is accused of doling out thousands of oxycodone prescriptions to patients over the past several months.

“He was kind of a free-wheeling prescription shop. If you wanted a prescription, you saw him,” said one law enforcement source with knowledge of the investigation.

He allegedly hired bouncers to monitor the door as he dealt the drugs.

The investigation was launched earlier this year after a call from a tipster, sources said.

Lanting faces up to 20 years in prison if convicted, authorities said.